Improvement in piano-looks



I @nitro y gisten ste-nt Y @frn L. CAYLORD, 0F TERRYVILLE, CONNECTICUT;

Lenen Parent Nm 68,497, dazed siemter s, 1867.

i IMPROVEMENT IN- PIANO-Loses.

T0 AIA-L WHOM IT MAYfCONCERN: -f ,Be it known thutI, E. L. GAYLORD, of Tei'ryville, in the county of Litchfield, and State of Connecticut, havnernvented a newond improved Lock, und that the following description, teken inl connectionwith the ioeompanying drawings, hereinafter referred to, forms n full and exact specicntion'of the samewherein Illiave let forth the nature and principles ofmy salid improvements, by which my invention may be distinguished from lll others f. similar cless, together-with such psrts as I claim and desire to have secured 'to me by Letters Patent.

' This invention relates to' n new and improved lock of that class which is designed for articles having' hinged lids,` such, for instance, as piano-fortes, sewing machines, etc., etc.

Thelinvention consists in n. novel means employed-for operating the bolts of the lock, as hereinafter fully shown and described. In the accompanying sheet of drawings- Figure 1 is an intel-ns1 view of alock constructed accoi-ding to my invention. "'Figur'e'gfn section of the same, taken in the line z a', fig. 1. Similar letters of reference indicate like parts. I 1 l A represents the ease of the lock, which 'may be-constructed in tbc usual or any proper manner, and B B n re the two bolts ofthelock, the outer pnrtsa of which are of curved form, and the inner partsb are-straight,

'projecting at about'iight angles from the ports a. The inner ends ol' the parts are fitted on one and the same pivot c, although they may work on separate pivots, if desired. lC represents a. slide, which moves horiyzontnlly in the lock-cose and works on suitable guidesd. This slide is provided with two oblique slots, e e,'

which are parallel with each other, and in which pins ff attached to the parte b of the bolts pass. Esch bolt `has a. spring, g, bearing upon it. The slide C is moved by means of n key, and it will be seen that when; the

slide is moved to tbe rightthe bolts B B will bedrawn down ,and the lock, unlocked, the springs gg being depressed as the bolts are drown down,a.nd by moving the slide in the opposite ,direction (to the, left) the bolts B B will be forced upward and the curved pax-'ts a poss4 through holes in n'plnte which is' attached to" the lid of the srticle to` which the loci; is applied.' The springs gg facilitate the upward movement o f the bolts and prevent any loose play or rattling of tli'esame.. l A

` Having thus described myA invention, -I claim 'as new, and desire to secureliy Letters Patentn The two bolts B B, arranged so as to workl on n siglepivot or centre, c, orion' different pivots or centres,

. in combination with a. horizontally moving' slidev connected witli thebolts, its shown, and all arranged to operate in thelmannersnbstantiallyas sndfor thepu'rpose'yeet forth. y, n i The above speciiiostiongofmyinitetionsigned ,bythe this, :16th vdnjyoi April, 1867.y 1` v y n L. GAY'LCRD'. Witnesses A WM. McNMARA, iL-5A. Ssnvtos. 

